Nancy Davis Allen

I am searching for the parents of nancy Davis Allen.The only information is have is she was supposedly born in Ohio and married Isaac Skaggs, born in Indiana.They had one daughter that I know of, Nancy Melissa Skaggs, b. 1872 in Leavonworth, KS, d. 1958 in Comanche, OK Nancy Melissa married David T. Bryan. I have their decendents info.